CVE-2026-28277

CVE Enrichment

CVSS: 7.2 HIGH
EPSS: 0.70%
EPSS Percentile: 51.81%
CISA KEV: Not listed

Description

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In version 1.0.9 and prior, LangGraph checkpointers can load msgpack-encoded checkpoints that reconstruct Python objects during deserialization. If an attacker can modify checkpoint data in the backing store (for example, after a database compromise or other privileged write access to the persistence layer), they can potentially supply a crafted payload that triggers unsafe object reconstruction when the checkpoint is loaded. No known patch is public.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: security-advisories@github.com
Published: 06-Mar-2026 03:16
Last Modified: 17-Jun-2026 17:28
EPSS Date: 2026-10-12
CWE: CWE-502

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:H /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

Affected Products / Versions

langchain / langgraph
Version / affected range: * · through (inclusive) 1.0.9
cpe:2.3:a:langchain:langgraph:*:*:*:*:*:*:*:*

References

security-advisories@github.com

Last enrichment sync: 13-Oct-2026 00:12
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

Two of them chain into remote code execution: a SQL injection in the SQLite checkpointer (CVE-2025-67644) and an unsafe msgpack deserialization (CVE-2026-28277). LangGraph Checkpointer Flaws Could Enable Remote Code Execution

CVE (2)

People (1)

Vendors (1)

Products (6)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.